Shanghai Nianxing Industrial Co., Ltd
China
Product Name: tetrahydro-2-methoxy-2H-pyran
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: tetrahydro-2-methoxy-2H-pyran
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
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6581-66-4

6581-66-4 structure

6581-66-4 structure

Name: tetrahydro-2-methoxy-2H-pyran
Chemical Name: 2-methoxyoxane
CAS Number: 6581-66-4
Molecular Formula: C₆H₁₂O₂
Molecular Weight: 116.15800
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyran compound
Create Date: 2018-04-19 08:00:00
Modify Date: 2025-09-08 08:59:43

Name	2-methoxyoxane
Synonyms	2-Methoxytetrahydropyran PYRAN,2-METHOXY-TETRAHYDRO 2-methoxytetrahydro-2H-pyran MFCD00075264 tetrahydropyran-2-yl methyl ether methoxydihydropyran 2H-Pyran,tetrahydro-2-methoxy methoxytetrahydropyran EINECS 229-509-8 Tetrahydro-2-methoxy-2H-pyran

Density	0.963 g/mL at 25ºC(lit.)
Boiling Point	128-129ºC(lit.)
Molecular Formula	C₆H₁₂O₂
Molecular Weight	116.15800
Flash Point	77 °F
Exact Mass	116.08400
PSA	18.46000
LogP	1.15940
Index of Refraction	n20/D 1.425(lit.)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ0300000

CHEMICAL NAME :: Pyran, 2-methoxy-tetrahydro-

CAS REGISTRY NUMBER :: 6581-66-4

BEILSTEIN REFERENCE NO. :: 0102955

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C6-H12-O2

MOLECULAR WEIGHT :: 116.18

WISWESSER LINE NOTATION :: T6OTJ BO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2870 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) Volume(issue)/page/year: -,6,1961

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) Volume(issue)/page/year: -,6,1961

Hazard Codes	F
Risk Phrases	R10
Safety Phrases	S16-S29-S33
RIDADR	UN 1993 3/PG 3
WGK Germany	2
RTECS	UQ0300000
Packaging Group	III
Hazard Class	3.2
HS Code	2932999099

Precursor 9
4454-05-1 110-87-2 67-56-1 5324-21-0
1927-68-0 40365-61-5 5631-96-9 36602-98-9
1927-62-4
DownStream 10
542-28-9 14273-92-8 624-24-8 628-77-3
180-84-7 7429-25-6 74-88-4 142-68-7
67-56-1 3136-02-5

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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